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break out slack upload into separate function

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This commit is contained in:
Matthew McGinn 2017-10-02 20:45:22 -04:00
parent 89ca4b247b
commit 122e2b5c42
1 changed files with 22 additions and 16 deletions
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38
pkg/services/alerting/notifiers/slack.go
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@ -163,29 +163,35 @@ func (this *SlackNotifier) Notify(evalContext *alerting.EvalContext) error {
return err
}
if this.Token != "" {
slackUploadUrl := "https://slack.com/api/files.upload"
if evalContext.ImageOnDiskPath == "" {
evalContext.ImageOnDiskPath = "public/img/mixed_styles.png"
}
this.log.Info("Uploading to slack via file.upload API")
headers, uploadBody, err := GenerateSlackUpload(evalContext.ImageOnDiskPath, this.Token, this.Recipient)
if err != nil {
return err
}
cmd := &m.SendWebhookSync{Url: slackUploadUrl, Body: uploadBody.String(), HttpHeader: headers, HttpMethod: "POST"}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
this.log.Error("Failed to upload slack image", "error", err, "webhook", "file.upload")
return err
}
err = SlackFileUpload(evalContext, this.log, "https://slack.com/api/files.upload", this.Recipient, this.Token)
if err != nil {
return err
}
}
return nil
}
func GenerateSlackUpload(file string, token string, recipient string) (map[string]string, bytes.Buffer, error) {
func SlackFileUpload(evalContext *alerting.EvalContext, log log.Logger, url string, recipient string, token string) error {
if evalContext.ImageOnDiskPath == "" {
evalContext.ImageOnDiskPath = "public/img/mixed_styles.png"
}
log.Info("Uploading to slack via file.upload API")
headers, uploadBody, err := GenerateSlackBody(evalContext.ImageOnDiskPath, token, recipient)
if err != nil {
return err
}
cmd := &m.SendWebhookSync{Url: url, Body: uploadBody.String(), HttpHeader: headers, HttpMethod: "POST"}
if err := bus.DispatchCtx(evalContext.Ctx, cmd); err != nil {
log.Error("Failed to upload slack image", "error", err, "webhook", "file.upload")
return err
}
if err != nil {
return err
}
return nil
}
func GenerateSlackBody(file string, token string, recipient string) (map[string]string, bytes.Buffer, error) {
// Slack requires all POSTs to files.upload to present
// an "application/x-www-form-urlencoded" encoded querystring
// See https://api.slack.com/methods/files.upload